Hisashi Nakajima

This inventor holds 42 USPTO granted patents and 11 published patent applications, plus 2 CIPO patents and 11 EPO patents, primarily in Image Formation Technology. Top assignees: Ricoh Company, Ltd., Tomy Company, Ltd.. Active years: 2007-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Nakajima. Retrieved from https://idiyas.com/inventor/hisashi-nakajima

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 42 (Patent Applications = 11)

% Patents Active = 78.6

CIPO Patents = 2

EPO Patents = 11 (Patent Applications = 9)

Average Co-Inventor Count = 6.2

ph-index = 10

Forward Citations = 345(Granted Patents)

Location History:

Numazu, JP (2007 - 2014)
Shizuoka-ken, JP (2015)
Tokyo, JP (2020)
Shizuoka, JP (2008 - 2022)

Company Filing History:

Years Active: 2007-2022

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Areas of Expertise:

Toner

Image Forming Apparatus

Electrophotography

Process Cartridge

Developer

Toner Container

Image Formation Method

Carrier

Developing Device

White Toner

Accessory for Spinning Top Toy

42 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11287757 - Toner, toner stored container, developer, developing device, process cartridge, and image forming apparatus (2022-03-29),

2. 11256188 - Toner, toner stored unit, and image forming apparatus (2022-02-22),

3. 10627732 - Toner, developer, toner storage unit, image forming apparatus, image forming method, and method for producing printed matter (2020-04-21),

4. 10599059 - Toner, image forming apparatus, image forming method, and toner storage unit (2020-03-24),

5. 10578988 - Toner, image forming apparatus, and toner stored unit (2020-03-03),

6. D875842 - Accessory for spinning top toy (2020-02-18),

7. D875841 - Accessory for spinning top toy (2020-02-18),

8. 10459360 - Toner and image forming method (2019-10-29),

9. 10274856 - Toner for electrophotography, image forming method, and process cartridge (2019-04-30),

10. 10254668 - Toner for electrophotography, developer for electrophotography, image forming apparatus, and process cartridge (2019-04-09),

11. 10203620 - Toner, image forming method, and process cartridge (2019-02-12),

12. 9482971 - White toner, and image forming method and image forming apparatus using the white toner (2016-11-01),

13. 9348259 - Toner housing container and image forming apparatus (2016-05-24),

14. 9182694 - Toner, image forming apparatus, image forming method, and process cartridge (2015-11-10),

15. 9128398 - Toner for forming electrophotographic image, method for manufacturing toner for forming electrophotographic image, image forming method, and process cartridge (2015-09-08),

Title: Inventor Hisashi Nakajima: Pioneering Innovations in Shizuoka

Introduction: Hisashi Nakajima is a distinguished inventor hailing from Shizuoka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Nakajima's recent patents focus on advancements in robotics and artificial intelligence, showcasing his commitment to pushing the boundaries of technological development.

Career Highlights: With a career spanning over two decades, Nakajima has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved efficiency in various sectors.

Collaborations: Throughout his career, Nakajima has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge-sharing.

Conclusion: Hisashi Nakajima's relentless pursuit of innovation and his passion for creating cutting-edge solutions have solidified his reputation as a visionary inventor in Shizuoka and beyond.

Profile summary based on public USPTO records.